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GB2240849B - Identification method for a gas flow and its disturbances - Google Patents

Identification method for a gas flow and its disturbances

Info

Publication number
GB2240849B
GB2240849B GB9102663A GB9102663A GB2240849B GB 2240849 B GB2240849 B GB 2240849B GB 9102663 A GB9102663 A GB 9102663A GB 9102663 A GB9102663 A GB 9102663A GB 2240849 B GB2240849 B GB 2240849B
Authority
GB
United Kingdom
Prior art keywords
disturbances
gas flow
identification method
identification
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
GB9102663A
Other versions
GB9102663D0 (en
GB2240849A (en
Inventor
Erkki Olavi Heinonen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Instrumentarium Oyj
Original Assignee
Instrumentarium Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Instrumentarium Oyj filed Critical Instrumentarium Oyj
Publication of GB9102663D0 publication Critical patent/GB9102663D0/en
Publication of GB2240849A publication Critical patent/GB2240849A/en
Application granted granted Critical
Publication of GB2240849B publication Critical patent/GB2240849B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/104—Preparation of respiratory gases or vapours specially adapted for anaesthetics
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
    • G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
    • G01N11/08—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by measuring pressure required to produce a known flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/36—Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Biochemistry (AREA)
  • Pulmonology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Hematology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Measuring Volume Flow (AREA)
GB9102663A 1990-02-08 1991-02-07 Identification method for a gas flow and its disturbances Expired - Lifetime GB2240849B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI900639A FI91019C (en) 1990-02-08 1990-02-08 Method for identifying gas flow and its disturbances

Publications (3)

Publication Number Publication Date
GB9102663D0 GB9102663D0 (en) 1991-03-27
GB2240849A GB2240849A (en) 1991-08-14
GB2240849B true GB2240849B (en) 1993-07-28

Family

ID=8529856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9102663A Expired - Lifetime GB2240849B (en) 1990-02-08 1991-02-07 Identification method for a gas flow and its disturbances

Country Status (4)

Country Link
US (1) US5161406A (en)
DE (1) DE4103868B4 (en)
FI (1) FI91019C (en)
GB (1) GB2240849B (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI92468C (en) * 1991-11-15 1994-11-25 Instrumentarium Oy Device for dosing anesthetics for a patient
FI100007B (en) * 1994-05-06 1997-08-15 Instrumentarium Oy Device in a gas mixer
DE4418558A1 (en) * 1994-05-27 1995-11-30 Telefunken Microelectron Device for detecting the rotary movement of a spray arm
GB9418163D0 (en) * 1994-09-09 1994-10-26 British Gas Plc Pressure reduction system testing
SE504256C2 (en) * 1995-02-14 1996-12-16 Siemens Elema Ab Device intended for use in anesthesia equipment to identify anesthetic agents
DE19619632A1 (en) * 1996-05-15 1997-11-20 S K I Schlegel & Kremer Indust Measuring density of flowing fluid using at least two measuring points
US5780717A (en) * 1997-04-23 1998-07-14 Lockheed Martin Energy Research Corporation In-line real time air monitor
US6164276A (en) * 1997-05-16 2000-12-26 Datex-Ohmeda, Inc. Accurate dose nitric oxide pulse delivery device with monitoring and alarms
EP0878208B1 (en) * 1997-05-16 2004-12-22 Datex-Ohmeda, Inc. Constant volume nitric oxide pulse delivery device
FR2805042B1 (en) * 2000-02-11 2002-09-06 Metravib Sa NON-INTRUSIVE METHOD AND DEVICE FOR CHARACTERIZING THE DISTURBANCE OF A FLUID WITHIN A PIPELINE
US6474144B1 (en) * 2000-03-18 2002-11-05 John Barnes Determining the level of particulate contamination in a fluid power system
NO316477B1 (en) * 2001-12-06 2004-01-26 Rotator As Device and method of volume flow measuring valve
US20040107965A1 (en) * 2002-09-16 2004-06-10 Hickle Randall S. System and method for monitoring gas supply and delivering gas to a patient
US6857443B2 (en) * 2003-02-24 2005-02-22 George A. Volgyesi Electronic gas blender and gas flow control mechanism therefor
CN101825514A (en) * 2010-05-21 2010-09-08 北京理工大学 Flow-type leakage detection method and device thereof
GB201013623D0 (en) 2010-08-13 2010-09-29 Linde Ag Device for monitoring gas concentration and method using the device
CN102012243A (en) * 2010-09-26 2011-04-13 深圳市百格医疗技术有限公司 Method for detecting gas leakage quantity of medical instrument with respiration loop
GB201305239D0 (en) * 2013-03-21 2013-05-01 Paradigm Flow Services Ltd Water deluge testing apparatus and method
CN104075856B (en) * 2013-03-29 2017-02-08 北京谊安医疗系统股份有限公司 Method for measuring compliance and leakage of system circuit of anaesthesia machine
CN103439055B (en) * 2013-06-13 2016-02-17 中国计量学院 A kind of differential pressure air-leakage test temperature compensation
DE102013014532B3 (en) * 2013-09-03 2014-11-06 W. O. M. World of Medicine GmbH Apparatus and method for determining mixing ratios of flowing media
GB2541398A (en) * 2015-08-17 2017-02-22 Flexlife Ltd Annulus inspection
NL2017342A (en) * 2015-08-31 2017-03-06 Asml Netherlands Bv A Gas Leak Detector and a Method of Detecting a Leak of Gas
DE102017011625A1 (en) 2017-12-15 2019-07-18 Drägerwerk AG & Co. KGaA A method, computer program, apparatus and respiratory system for detecting a leak in a patient gas module

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB356322A (en) * 1930-06-14 1931-09-10 Thomas Reginald Warren Improvements in or relating to methods for indicating failures in pipe lines
GB1304430A (en) * 1969-05-06 1973-01-24

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2984105A (en) * 1955-08-04 1961-05-16 Nagel Roland Device for measuring the quantities of solids contained in flowing mediae
US3086386A (en) * 1959-09-29 1963-04-23 Standard Oil Co Viscosity measuring system
FR1563116A (en) * 1968-02-27 1969-04-11
SU439731A1 (en) * 1969-02-17 1974-08-15 Северо-Западный Заочный Политехнический Институт Jet sensor gas composition
US3576043A (en) * 1969-12-11 1971-04-27 Williamson Inc T Pipeline pig with spring-mounted scrapers
US4576043A (en) * 1984-05-17 1986-03-18 Chevron Research Company Methods for metering two-phase flow
GB2186981B (en) * 1986-02-21 1990-04-11 Prad Res & Dev Nv Measuring flow in a pipe
DE3623664A1 (en) * 1986-07-14 1988-01-28 Ruhrgas Ag METHOD AND DEVICE FOR MEASURING GAS PROPERTIES
US4836032A (en) * 1988-03-07 1989-06-06 Texaco, Inc. Method of determining the quality of steam for stimulating hydrocarbon production

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB356322A (en) * 1930-06-14 1931-09-10 Thomas Reginald Warren Improvements in or relating to methods for indicating failures in pipe lines
GB1304430A (en) * 1969-05-06 1973-01-24

Also Published As

Publication number Publication date
US5161406A (en) 1992-11-10
FI900639L (en) 1991-08-09
FI900639A0 (en) 1990-02-08
GB9102663D0 (en) 1991-03-27
FI91019B (en) 1994-01-14
FI91019C (en) 1994-04-25
GB2240849A (en) 1991-08-14
DE4103868B4 (en) 2005-05-04
DE4103868A1 (en) 1991-08-14

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20110206